Is it possible to test models with previous versions of the babylon sandbox without having to find a specific commit and clone it from github?

This is what we are trying to test:
Refractions are added in our Blender model. When exporting the model as glb and uploading to babylon sandbox, it works, the refractions are visible. When in our app, the refractions are not visible, and, upon inspecting the mesh, there are no refraction “textures” added to the refraction channel of the mesh’s material. The glass is instead just rendered as a white plane. The refraction is automatically added in the babylon sandbox. Why it is not in our code is what we are trying to figure out. Looking through the commits and versions until I find when it was implemented/fixed between 4.2.0 and 5.0.0 (if it is indeed a babylon issue) would be tedious and I’d like to avoid that if possible.

Our code is using babylon 4.2.0. The babylon sandbox seems to be auto-set to babylon 5.0.0-alpha.40. Is there a way to set the version of the babylon sandbox? If not, can we consider this a feature request? Thanks for the help!

You can not in the sandbox, but you could try in the playground with previous versions, would that work for you ? and yes lots of the transmission work has been added in 5.0 so might totally be related.

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I’ll give it a shot, thanks